Brake mechanism.



No. 774,950. PATENTED NOV. 15, 1904. c. K. PIGKLBS.

BRAKE MECHANISM.

APPLICATION FILED NOV. 24, 1903.

N0 MODEL.

WITNESSES:

'. K'WMQ N VE/V 70/? 0 A4 32mm,

No. 774,950; Patented November 15, 1904.

UNITED STATES PATENT EEicE- CHARLES K. PIOKLES, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO JOHN A. BRILL, OF PHILADELPHIA, PENNSYLVANIA.

BRAKE MECHANISM.

SPECIFICATION forming part of Letters Patent No. 774,950, dated November 15, 1904.. Application filed November M, 1903, Serial No. 182,442. (No model.)

To whom it Z/ 007106771" beams are shown, as these and the remaining.

Be it known that I, CHARLES K. PIoKLEs, a parts may be of any suitable form. 5

citizen of the United States, and a resident of From the above the operation of my imthe city and county of Philadelphia, State of provement is obvious. here pressure is ap- Pennsylvania, have invented certain new and plied through the rod 1 1, the cord 16 is pulled useful Improvements in Brake Mechanism, of on each side of the pulley 15, thereby turning which the following is a specification. the pulley in one direction and the pulley 55 My invention relates to the means which 11 in the other and drawing the lever 17 toconnect the part of a brake which is on a pivward the bolster. As the pulleys 10 and 11 I0 otal truck with the part fixed to the car-body, are of the same diameter, this action is not in so that the brakes may be applied evenly and any way interfered with by a curve which withthe same tension without regard to the turns the truck as the cable 16 unwinds from 0 turning of the truck when passing round a' one of these pulleys precisely what winds on curve, and has for its object to providea simthe other, and the pulley permits shifting I 5 pler and better mechanism of this class. of the cable without hindrance.

For a more particular description of some In the modification shown in Fig. 2 the pulembodiments of my invention reference is to leys on the bolsterl are placed on each side 65 be had to the accompanying drawings, formof the center and the ends of the cable 16 are ing a part hereof, in which secured to a bar 20, which is connected to the 0 Figure 1 is a perspective view of a portion brake mechanism of the truck. As the action of atruck-frame with myimprovements. Fig. of the mechanisms is similar in both modifi- 2 is a plan view of a modified structure. cations, further description is believed to be 70 Throughout both views slmilar reference unnecessary. characters designate similar parts. While I have shown and described certain The bolster 1 is provided with the usual side embodiments of my invention, it is obvious bearings 2 and 3 and is supported between that many others may be had which employ transoms 5 and 6, which connect the top cords its essential features and come within the scope 75 7 and 8, all of which may be of the well-known thereof. and conventional forms. hat I claim is- 3 Concentric with the king-bolt 9 and pivoted 1. In a brake mechanism, means adapted to thereon are loose grooved pulleys 10 and 11, be secured to acar-frame, for applying power one on top of the other, and the lower one, 11, to a brake, means adapted to be secured to a rests on a rub-plate 12. A second rub-plate pivotal truck 'for applying said brake, and an (not shown) rests over the pulley 10 and supequalizing cord or cable connecting said carports the car-body without interfering with 1 supported means so that the tension of the the movements of the pulleys 10 and 11. l brake will always be the same regardless of A hanger 13 is suspended from the carthe radiation of the truck with said truck-sup- 8 5 frame and through it passes a rod 14, which ported means. may be connected with an air-cylinder or any 2. In a brake mechanism, means adapted to 4 other suitable source of power, and the other be secured to a car-frame for applying power end of this rod is provided with a grooved to a truck, means adapted to be secured to a pulley 15. One end of the cord or preferably pivotal truck for applying said brake, a cord 9 a cable 16 is secured to the upper end of a or cable and pulleys connecting said car-suptruck brake-lever 17 and passes over the pulported means so that the tension of the brake the pulley 10 and finally returns to the upper end of the lever 17, where it is secured in any suitable way. Only portions of the brakediation of the truck with said truck-supporting means.

ley 11, thence over the pulley15, and then over I will always be the same regardless of the rai 3. In a brake mechanism, a rod, a truck brake-lever, a brake-beam connected with the said lever, a cable connecting said rod and lever.

4c. In abralre mechanism, a rod with a pulley, pulleys adjacent to the king-bolt, a truck brake-lever and a cord or cable passing over said pulleys and fixed to said lcver so that the tension on the brake is not afi'ected by the radiation of the truck.

5. In a brake mechanism, a rod with a pulley, a truck with a king-bolt, pulleys turning on said king-bolt, a truck brake-lever, and a cable passing over said pulleys and connecting said rod and truck brake-lever so that the former actuates the latter.

6. In a brake mechanism, a rod with a pulley, atruck with a king-bolt and atruck brakelever, pulleys on said king-bolt, one above the other, and a cable connecting said rod and lever and passing over said pulleys.

7.- In abrake mechanism, a rod with a pulley, atruck with a brake-lever and king-bolt, two pulleys, one resting on the other, and both concentric with said king-bolt, and a cord passing over all of the said pulleys and connecting said lever and rod.

8. In a brake mechanism, a pulley and means for supporting the same, a truck brake-lever, and means connecting said lever and pulley so that the latter will always act on the former With the same tension regardless of the relative positions of the truck and car-body.

9. In abrake mechanism, apulley and means for supporting the same, a truck with a brakelever and flexible means connecting said pulley and lever so that the pulley can always be made to actuate the lever with the same tension regardless of the relative positions of the car and truck.

Signed in the city and county of Philadelphia, State of Pennsylvania, this 19th day of November, 1903.

CHARLES K. PICKLES.

Witnesses:

B. D. AOKLEY, TERRENCE IVIGCUSKER. 

